Specification of zhongya plastic rubber heat-insulating &heat-pressrvation material
项目(ltem) | 单位(unit) | 性能指标(specification) |
表观密度(dendity) | Kg/m3 | 50-100 |
燃烧性能(flammabiliy) | | B1 |
氧指数(oxygenindex) | % | ≥33 |
平均温度(average temperature) -20℃ 0℃ 40℃ | W/(m.k) | ≤0.032 ≤0.035 ≤0.037 |
湿阻因子(factor) | | ≥5×103 |
真空吸水率(water absorption ratio in vacuum) | % | ≤10 |
尺寸稳定性(dimendion stability) 105℃±3℃,7d | % | ≤10 |
耐臭氧性(anti-ozone),200h | | 不龟裂(not cracking) |
压缩回弹力(compress resiliencre ratio) 压缩率(compress ratio)50% 压缩时间(compress time)72h | % | ≥70 |
抗老化性(aging resistance),150h | | 轻微起皱,无裂纹,无针孔,不变形 (slighty crumping |